Pipets by Design differentiate contain vs deliver. Which term corresponds to deliver?

• A. To contain (TC Pipets)
• B. To deliver (TD Pipets)
• C. To calibrate
• D. To measure

Answer: (B)

Pipettes are built around two design intents: contain or deliver a specified volume. The term that corresponds to delivering is “To Deliver.” A pipette labeled To Deliver is calibrated so that the amount it dispenses matches the nominal volume, with the expectation that you expel the contents from the tip (often by blowing out the last drop) to ensure the full amount is delivered. In contrast, To Contain refers to a pipette that is designed to hold the stated volume in the tip and may not deliver the full amount unless a blowing-out step is taken, leaving some liquid in the tip. The other options describe general actions (calibrating, measuring) rather than the specific design intent of delivering a precise volume.